The following is a list of gardens in New York City which are open to the public (listed alphabetically): Bartow-Pell Mansion. British Garden at Hanover Square. Brooklyn Botanic Garden. Central Park Conservatory Garden. The Cloisters. Enid A. Haupt Glass Garden. Fort Tryon Park Garden.
https://en.m.wikipedia.org/wiki/List_of_New_York_City_gardens